Process for treating vegetable substances and extracting therefrom fibrous substances



Patented Apr. 27,1926.

* UNITED STATES. PATENT 0 1,582,053- FFICE.

"PAUL xorrnt, or KARLSRUHE, GERMANY.

rRocEss FORTREATING VEGETABLE sugas'renons Ann rIBnoUs SUBSTANCES.

No Drawing.

To all whom it may concern:

Be it known thatPAUL Korrnn, a citizen of Germany, residing at'Karlsruhe, Baden, Germany, has invented certain new .and useful Improvements in Processes for Treating Vegetable Substances and Extracting 'Iherefrom Fibrous Substances, of which the following is a specification.

Thepresent invention relates to a process 'forLextracting from raw vegetable matter.-

"of any description, suchas flax, hemp,- straw, peat and the like, those'valuable products, more particularly fibres, which' are'suitable both for the manufacture of paper and for spinning with a view tosthe' manufacture of textiles of all kinds. I

The process consists in treating the raw vegetable matter with insoluble (or diliicultly soluble) substances in powderformin the presence of a suitable liquid. There isthus produced an interaction (which'fhas not yet been closely investigated) between the so called inter-cellular substance 'iniwhich the elementaryfibres of the raw material are embeddedtincrusted),and the powdered substances which are hereinafter referred to as catalyzers or decomposing agents, whereby that part of the inter-cellular substance, the so called incrustations,which are not dissolved undergo a peculiar change visibly shown by the incrustations becoming for the most part brittle and friable. By reason of this changed condition the inter-cellular substances can be washed out from the fibrous material, or they can be combed out, so that the tiny fibrous strands are separated out and can be spun tomake thread or treated.

for the making of paper. The process can be carried out in many different ways and with the most diverse catalyzers.

The following are given as examples of ways of carrying out the process:

1st ewampZeQ-IOO parts of flax tow, from which the woody constituents have been first removed, are mixed with 25 parts of finely powdered calcined magnesite (the oxide of an earth metal). and 1,000 parts of water are poured over the mixture. The whole mixture is then heated in an open vessel forfour hours to 95 to 100 C.,'1;he product is then rinsed with water, dried and combed out.

2nd example-300 parts of rye straw are heated with parts of calcined magnesite and 3,500 parts of water for six hours to 120 C. The product is washed and ground and then Application filed May 14, 1923.. Serial No. 639,023.

facture of paper. r

3rd example-100 ,kg. offiax tow from which the wood has firstvbeen removed are heated together with 25 kg. of finely divided kieselguhrand 1,000 litres of water in an open cooker for four hours to to C.,

and is then a usable substance for the manuthe product is washed, dried and combed in order to secure the .tibrous material.

4 th eacamplc. 300 kg. of flax straw are heated together with 75kg. kaolin and 3,000 litres of water in an autoclave for six hours, the substance is subjected to the same treatment as described abovein the 1st, 2nd, and 3rd examples.

5th ezcmnplc.-500.parts of flax tow from which. the particles of wood have first been removed are heated together with 5 parts of calcined inagnesite and 5,000 parts of a weak solution of caustic soda in an auto- 3 clave for two hours to 120 C; The product s washed,- drie d and ,combed in order "to secure the fibrous material.

similar charcoal, bole,-kaolin, clay and loam.

nxrnaorine ri nnnrnom process may be produced or com- A change, and no doubt an increase in the action of the hereinbefore al processes, particularly in 1y decomposable species of from the 5th example, where instead of wa ter other steeping liquids can be employed that act upon the intercellular substance. Such liquids maybe, for example: i

lVea-k aqueous alkali lyes, solutions of al kali carbonates, solutions of neutral or described genercertain clrtlicultacid sulphites, soaps or, for example, Turkey red oil, and the like.

One or other of these steeping liquids will be used dependent upon the nature of the raw material and of the catalyzer in question. It has furthermore to be observed that this new process may be carried out in the cold, (that is, under normal temperature conditions) or by the application of heat, at normal atmospheric pressure or under plants, follows high pressure, and even in certain circumstances under partial vacuum, according to the kind of raw material, liquid and. cata: lyzer.

A particular advantage of the new process regenerated by heating, sothatthey: can he made suitable for use over and over again; hence the new process is extraordinarily economical.

I am aware that it has already been proposed to use calcium hydroxide, strontium hydroxide and barium hydroxide as decom posing media for vegetable substances, it being understood that there is a; chemical change and cross-action between the decom posing agents and the vegetables. For this reason-I have expressly eliminated the above mentioned substances from the present in Vention.

For removing all doubt as to the scopeof the invention I expressly state that I do-not claim the process of deinkingprinted paper, but only the manufacture of paper and of fibrous material from raw vegetable substances.

I claim- 7 1. A process of manufacturing fibrous material wlii h is suitable forspinning, and of paper from raw vegetable substances consisting in. using a non-alkaline insoluble iiidlifierent matter, in a finely divided state, mixing this matter with a liquid to form a suspension, boiling in. this suspension the vegetable substance, drying the latter and combing out the fibrous material.

2; Aprocess of manufacturing fibrous material whichissuitable or spinning and of paper from raw vegetable substances consisting in using a non-alkaline insoluble indifii'erent matter in, a colloidal state nnixing this matter with water to form a suspension, boiling in. this suspension the vegetable'substances, dryingthe latter and combing outthe fibrous material.

3. A process, of manufacturing fibrous material which is suitable for spinning, and of paper from. raw vegetable substances consisting in using a. non-alkaline, insoluble indifferent matter in finely divided state,.mixing'this matter with a liquid to form a susension treating in this suspension the vegetable-substancesand drying the treated. substances for. further use.v 1

4.. A. process,otmanufacturing fibrous ma terial. which is suitable for spinning. and, of paperfromraw vegetablesubstances-consisting in using a non-alkaline, indifiierent insoluble matter of adsorbent nature ina: finely diivided state, mixing this matter with a llqlll'di to form a. suspension, treatingin this suspension the vegetable substancesand drying the latter for "further use.

In. testimony whereot he has. signed. his name to this specification. v

' DrrL. ING. PAUL-KGPPEL. 

